Abstract
The specific heat of a single crystal sample of has been measured with magnetic fields up to 8 T applied parallel to the c axis of the crystal. The results provide strong evidence for the existence of a critical regime within which there is scaling behavior characteristic of the three-dimensional X-Y model with critical exponents consistent with those observed in superfluid .
- Received 19 January 1994
DOI:https://doi.org/10.1103/PhysRevLett.72.3238
©1994 American Physical Society